David McCallum is a Scottish-born actor and musician. He is best known for his television roles including Russian secret agent Ilya Kuryakin on The Man from U.N.C.L.E. and his current role as medical examiner Dr. Donald "Ducky" Mallard on NCIS.
Add "author" to his CV, his quirky crime novel, Once a Crooked Man is available now. In it, Sal, Max and Enzo Bruschetti have proved this over a lifetime of nefarious activity that they have kept hidden from law enforcement. Nowhere in any file, on any computer is there a record of anything illegal from which they have profited. But Max has a problem. His body is getting old and his doctor has told him to take it easy. Max has decided that the time has come for the family to retire.